UPDATED VALID 4A0-112 TEST COST–PRACTICAL DOWNLOAD PROVIDER FOR 4A0-112

Updated Valid 4A0-112 Test Cost–Practical Download Provider for 4A0-112

Updated Valid 4A0-112 Test Cost–Practical Download Provider for 4A0-112

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Tags: Valid 4A0-112 Test Cost, 4A0-112 Download, 4A0-112 Reliable Test Voucher, Reliable 4A0-112 Exam Book, 4A0-112 Valid Test Fee

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Nokia 4A0-112 Certification Exam is an excellent opportunity to deepen your knowledge of network routing protocols and take your career to the next level. With the demand for network professionals on the rise, becoming certified in IS-IS is an investment in your future that can pay dividends for years to come.

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Nokia 4A0-112 exam is designed for networking professionals with at least a few years of experience in the field. It is also suitable for anyone who wants to deepen their knowledge and skills in the area of routing protocols. With this certification, you will be able to advance your career and open up new job opportunities in the networking industry.

Nokia 4A0-112 Exam covers topics such as the configuration and operation of Nokia IS-IS Routing Protocol, IS-IS link-state database concepts, route selection criteria, and IS-IS-related troubleshooting procedures. It also covers the different types of IS-IS messages that are exchanged between routers and how they are used to build and maintain the routing table.

Nokia IS-IS Routing Protocol Sample Questions (Q27-Q32):

NEW QUESTION # 27
When a router performs the SPF calculation, which router is used as the root of the shortest path tree?

  • A. The router's closest neighbor.
  • B. The router with the lowest router ID.
  • C. The router with the fewest links.
  • D. The router doing the calculation.

Answer: D

Explanation:
When a router performs the SPF (Shortest Path First) calculation, it uses itself as the root of the shortest path tree (SPT). This router computes the shortest paths to all other routers in the network, treating itself as the origin and calculating the paths based on its view of the network.


NEW QUESTION # 28
Refer to the exhibit.

Examine the physical topology of the IS-IS network, the metrics of the links and the levels of the routers. All routers have their system interfaces included in IS-IS. Which of the following statements describes the route-table entry that router R4 will use to reach the system IP address of router R6?

  • A. Router R4 will not have a matching entry in its routing table for router R6's system IP address.
  • B. Router R4 will have a default route with router R2 as the next-hop.
  • C. Router R4 will have a default route with router R3 as the next-hop.
  • D. Router R4 will have a route to router R6's system IP address with router R2 as the next-hop.

Answer: D

Explanation:
Router R4 is in Area 49.0001 and R6 is in Area 49.0002. Both routers are Level 2 (L2), meaning that they can communicate across areas using Level 2 IS-IS routing.
Since R2 is the L1/L2 router that connects both Area 49.0001 and Area 49.0002, it will be the next-hop for router R4 to reach R6's system IP address.
The IS-IS protocol will ensure that R4 will have a route to R6's system IP address via R2 as the next-hop.


NEW QUESTION # 29
Which of the following statements about IS-IS is FALSE?

  • A. A level-1 router forwards traffic to other areas through the nearest I eve I-1/1 eve I-2 router.
  • B. A router becomes level-2 when it is associated with the backbone area.
  • C. In IS-IS, routers are associated with an area, not the interfaces.
  • D. IS-IS uses the concept of level-1 and level-2 routers to implement hierarchy.

Answer: C

Explanation:
In IS-IS, routers are actually associated with interfaces rather than the entire router being associated with a single area. A router can have interfaces in multiple areas, and it is the interface's configuration that determines which area it belongs to.


NEW QUESTION # 30
Which of the following statements about router interfaces on a Nokia 7750 SR is FALSE?

  • A. They can be logical or physical.
  • B. They can be assigned IPv4 and/or IPv6 addresses.
  • C. The system interface exists by default.
  • D. They can be used in pairs on the same subnet for redundancy.

Answer: D

Explanation:
Typically, interfaces on a Nokia 7750 SR router are not configured in pairs on the same subnet for redundancy. Instead, redundancy is achieved through mechanisms like Virtual Router Redundancy Protocol (VRRP) or other high availability protocols, not by simply using interfaces in pairs on the same subnet.


NEW QUESTION # 31
On a broadcast interface, an IS-IS router receives an LSP that is newer than the one on its database. Which of the following statements best describes the actions taken by the router as a consequence?

  • A. The router updates its database with the LSP and floods a copy to its neighbors on other interfaces.
  • B. The router sends back a copy of the LSP from its database to its neighbor.
  • C. The router updated its database with the LSP, acknowledges the LSP with a PSNP, and floods a copy to its neighbors on other interfaces.
  • D. The router updates its database with the LSP and acknowledges it with a PSNP.

Answer: C

Explanation:
When an IS-IS router receives a newer LSP (Link-State PDU) than the one already in its database, it takes the following actions:
Updates its link-state database with the new LSP.
Acknowledges the LSP with a PSNP (Partial Sequence Number PDU), which is sent to the router that originated the LSP, confirming the receipt of the newer LSP.
Floods a copy of the updated LSP to its neighbors on other interfaces to ensure all routers in the network have the updated topology information.


NEW QUESTION # 32
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